Your Child Just Turned 18: The Three Documents You Need Immediately

You’ve spent 18 years making decisions for your child. Medical appointments, school meetings, financial matters, you handled it all because that was your job as a parent.
Then your child turns 18, and overnight, everything changes.
Legally, your child is now an adult. And that means you no longer have automatic authority to access their medical records, speak with their doctors, or manage their financial affairs. The same rights you’ve exercised for nearly two decades? Gone—unless your child explicitly grants them back to you.
This isn’t a problem when everything’s going smoothly. But imagine your child is away at college and gets into a car accident. They’re unconscious in a hospital three states away. You rush to be by their side and the hospital tells you they can’t share any medical information with you. You can’t consent to surgery. You can’t even find out what’s wrong.
This scenario happens more often than you’d think. And it’s completely preventable.
What Changes When Your Child Turns 18
At 18, your child becomes a legal adult under Florida law. That means:
Medical privacy kicks in. Under HIPAA (the federal health privacy law), healthcare providers cannot share your child’s medical information with you—or anyone else—without your child’s written authorization. Even if you’re paying the bills. Even if they’re on your insurance.
Medical decisions are theirs alone. You cannot consent to medical treatment, make decisions about care, or even speak with doctors about your child’s condition without proper authorization.
Financial accounts are off-limits. You cannot access your child’s bank accounts, manage their finances, or handle their legal affairs without their permission—even if you opened the account for them.
Educational records are protected too. Under FERPA (the federal educational privacy law), colleges cannot share your child’s grades, disciplinary records, or other educational information with you unless your child consents.
These protections exist for good reason—adults have the right to privacy and autonomy. But they can create real problems when parents need to help their adult children in an emergency.
The Three Documents Every 18-Year-Old Needs
The solution is simple: before your child heads off to college (or starts their adult life in any capacity), have them sign three essential documents.
1. Health Care Surrogate Designation
A Health Care Surrogate Designation names someone (typically a parent) to make medical decisions on your child’s behalf if they’re unable to make those decisions themselves.
This document allows your designated surrogate to:
• Consent to or refuse medical treatment
• Access medical records and speak with healthcare providers
• Make decisions about hospitalization, surgery, and medications
• Choose healthcare facilities
Unlike a Living Will (which only applies to end-of-life situations), a Health Care Surrogate Designation applies anytime your child cannot make or communicate their own medical decisions, whether that’s due to anesthesia, a serious accident, or any other incapacitating event.
2. HIPAA Authorization
Even with a Health Care Surrogate Designation, you need a separate HIPAA Authorization to ensure there’s no confusion about who can access your child’s medical information.
This document explicitly authorizes healthcare providers to release protected health information to the people your child designates. It can apply even when your child is conscious and able to make their own decisions—allowing you to stay informed about their health without having to be their decision-maker.
Think of it this way: the Health Care Surrogate lets you make decisions when your child can’t. The HIPAA Authorization lets you stay informed even when they can.
3. Durable Power of Attorney
A Durable Power of Attorney allows a designated agent (again, typically a parent) to manage your child’s financial and legal affairs if they’re unable to do so themselves.
This might include:
The word “durable” is important—it means the power of attorney remains in effect even if your child becomes incapacitated. Without this document, you’d need to go to court and seek guardianship just to access their bank account or pay their rent while they recover from an accident.
When Should You Get These Documents?
Ideally, your child should sign these documents as soon as they turn 18—or shortly before, to take effect on their 18th birthday. The best time is before they leave for college, start a job, or otherwise begin their independent adult life.
• Accessing bank accounts
• Paying bills
• Managing student loans or financial aid
• Handling insurance matters
• Signing legal documents
• Managing tax matters
Why the urgency? Because you never know when an emergency will happen. Car accidents, sports injuries, sudden illnesses—these things don’t wait until it’s convenient. Having documents in place before something happens is the only way to be prepared.
August is the perfect time to take care of this. Before the chaos of move-in day, before classes start, before your child gets swept up in the whirlwind of college life—sit down, have the conversation, and get the documents signed.
How to Have the Conversation
Some young adults balk at the idea of giving their parents legal authority over their affairs. That’s understandable turning 18 is supposed to be about independence, not signing papers that let your parents back in.
Here’s how to frame it:
“This isn’t about control—it’s about protection.” You’re not trying to monitor their every move. You’re trying to make sure you can help them if something goes wrong.
“You choose who has authority.” These documents name whoever your child wants—it could be a parent, a grandparent, an older sibling, or any trusted adult. The choice is theirs.
“You can revoke them anytime.” If your child’s circumstances change—or if they simply want to update who has authority—they can revoke or modify these documents at any time.
“We’re doing this because we love you.” The last thing any parent wants is to be helpless while their child is suffering. These documents aren’t about distrust—they’re about making sure you can be there when it matters most.
The Parent’s Relief Kit
At The Law Offices of Mark F. Moss, we understand the challenges parents face when their children become legal adults. That’s why we’ve created the Parents’ Relief Kit—a package that includes all three essential documents:
• Durable Power of Attorney
• Health Care Surrogate Designation
• HIPAA Authorization
This kit ensures you have the legal permission needed to assist your child in any medical or financial situation. It’s peace of mind for you and protection for them.
Don’t Wait Until It’s Too Late
Every year, parents find themselves locked out of their adult children’s lives during emergencies, not because their children wanted it that way, but because no one thought to sign the paperwork.
Don’t let that be your family.
Before your child heads off to college this fall, contact us about the Parent’s Relief Kit. It’s one of the most important things you can do to protect your family.
Contact us at 904-329-7242 or visit markmosslaw.com to schedule a consultation.
Disclaimer: Reading this blog post does not create an attorney-client relationship and is not legal or tax advice. This is for informational purposes only. It is best to speak with an attorney or tax professional about your specific situation, questions, assets, concerns, and needs.